Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method performed by a wireless device in a wireless communication system, the method comprising: receiving, from a network, system information comprising barring information for a plurality of application specific congestion control for data communication (ACDC) categories; identifying barring information for an ACDC category selected by upper layers among the barring information for the plurality of ACDC categories; performing an access attempt for the ACDC category to a cell, wherein an access to the cell as a result of the access attempt is considered to be allowed for the ACDC category based on that at least one of a barring factor or a barring time is absent in the barring information for the ACDC category; and informing the upper layers of the result of the access attempt.
2. The method of claim 1 , wherein the barring information for the plurality of ACDC categories is ordered by an increasing order of the plurality of ACDC categories.
This invention relates to wireless communication systems, specifically to methods for managing access control in cellular networks. The problem addressed is the need for efficient handling of access barring information across different Access Control Domain Categories (ACDC) to optimize network resource allocation and user device access. The method involves organizing barring information for multiple ACDC categories in ascending order based on the ACDC category values. This ordering ensures that devices attempting network access are evaluated in a structured sequence, prioritizing lower-category requests before higher-category ones. The system first determines the ACDC category of a device seeking access, then applies the corresponding barring information from the ordered list. If the category is barred, the device is denied access; otherwise, it proceeds. This approach improves fairness and resource utilization by systematically processing access requests according to predefined category priorities. The method may also include dynamically updating the barring information based on network conditions, such as congestion levels or service demands. By maintaining an ordered list of ACDC categories, the system ensures consistent and predictable access control, reducing unnecessary signaling and improving overall network efficiency. The technique is particularly useful in scenarios where different types of devices or services require differentiated access priorities.
3. The method of claim 1 , wherein a first entry of the barring information for the plurality of ACDC categories is mapped to a highest category of which applications are least restricted in access attempts, and wherein a last entry of the barring information for the plurality of ACDC categories is mapped to a lowest category of which applications are most restricted in access attempts.
This invention relates to access control in wireless communication systems, specifically addressing the management of Access Class Barring (ACB) for Application Class Differentiation Control (ACDC) categories. The problem solved is the need to efficiently prioritize and restrict access attempts from different types of applications to prevent network congestion while ensuring critical services remain accessible. The method involves organizing barring information for multiple ACDC categories, where each category represents a different type of application with varying levels of access priority. The barring information is structured such that the first entry corresponds to the highest-priority category, where applications are least restricted in their access attempts. Conversely, the last entry corresponds to the lowest-priority category, where applications face the most restrictions. This hierarchical mapping ensures that higher-priority applications (e.g., emergency services or critical business applications) are granted access more readily, while lower-priority applications (e.g., non-essential or high-bandwidth applications) are more likely to be barred during network congestion. The method dynamically adjusts access permissions based on the predefined priority order, optimizing network resource allocation and maintaining service quality.
4. The method of claim 1 , wherein a first entry of the barring information for the plurality of ACDC categories is mapped to a lowest ACDC category of which applications are most restricted in access attempts, and wherein a last entry of the barring information for the plurality of ACDC categories is mapped to a highest ACDC category of which applications are least restricted in access attempts.
This invention relates to wireless communication systems, specifically to methods for managing access control in networks using Application Category Domain Control (ACDC) categories. The problem addressed is the need to efficiently regulate access attempts from different types of applications to prevent network congestion while ensuring fair resource allocation. The method involves organizing barring information for multiple ACDC categories, where each category represents a different level of access restriction for applications. The barring information is structured such that the first entry corresponds to the lowest ACDC category, which imposes the most restrictive access controls, preventing or limiting access attempts from applications in this category. Conversely, the last entry corresponds to the highest ACDC category, which imposes the least restrictive access controls, allowing more access attempts from applications in this category. This hierarchical mapping ensures that applications with higher priority or lower congestion impact are granted more access opportunities, while those with lower priority or higher congestion impact are restricted more heavily. The method dynamically adjusts access permissions based on the ACDC category assignments, optimizing network performance and resource utilization.
5. The method of claim 1 , wherein the barring information for the plurality of ACDC categories includes a barring factor and barring time for at least one of the plurality of ACDC categories.
This invention relates to wireless communication systems, specifically to managing access control for different categories of access control data convergence (ACDC) services. The problem addressed is the need to efficiently regulate access to network resources for various ACDC categories, such as emergency services, public safety, or commercial applications, to prevent network congestion and ensure fair resource allocation. The method involves transmitting barring information to user devices, where the barring information includes a barring factor and a barring time for at least one ACDC category. The barring factor determines the probability that a user device will be allowed access, while the barring time specifies the duration for which the barring applies. This allows the network to dynamically control access based on current load conditions, service priorities, or other operational requirements. The barring information can be tailored for different ACDC categories, enabling the network to prioritize critical services while restricting non-essential access during high-traffic periods. The method ensures that network resources are allocated efficiently while maintaining service quality for high-priority applications.
6. The method of claim 1 , wherein the barring information for the plurality of ACDC categories is configured per public land mobile network (PLMN).
This invention relates to wireless communication systems, specifically to managing access control for different types of devices in a public land mobile network (PLMN). The problem addressed is the need to efficiently control access for various device categories, such as Internet of Things (IoT) devices, to optimize network resources and ensure fair usage. The method involves configuring barring information for multiple Access Control for Data Communication (ACDC) categories on a per-PLMN basis. ACDC categories classify devices based on their service requirements, such as low-power IoT devices or high-priority emergency services. The barring information determines whether devices in a specific category are allowed or barred from accessing the network, helping to prevent congestion and prioritize critical services. The method includes receiving a request from a device to access the network, identifying the ACDC category of the device, and applying the corresponding barring information for that category within the PLMN. If the device is barred, the network denies access; if allowed, the device proceeds with registration or service initiation. The barring information can be dynamically updated based on network conditions, ensuring adaptive access control. This approach enables network operators to tailor access policies for different device types across multiple PLMNs, improving network efficiency and service quality. The solution is particularly useful in scenarios with high device density or varying service priorities.
7. The method of claim 1 , wherein the barring information for the ACDC category is barring information for a next ACDC category with respect to the ACDC category.
This invention relates to wireless communication systems, specifically methods for managing access control in networks supporting Access Class Barring for Data Communication (ACDC). The problem addressed is the need to efficiently control access for different categories of data communication devices to prevent network congestion while ensuring fair resource allocation. The method involves determining barring information for a specific ACDC category, where the barring information applies to the next ACDC category in sequence rather than the current one. This approach allows for staggered access control, where devices in one category are barred based on conditions affecting the subsequent category. The system dynamically adjusts access permissions to balance network load and prioritize critical services. The method includes receiving a request from a device, identifying its ACDC category, and applying barring rules intended for the next category in the sequence. This ensures that access restrictions are applied in a coordinated manner across different device types, preventing sudden spikes in network traffic. The solution is particularly useful in scenarios where multiple device categories share network resources, such as IoT devices, smart meters, and mobile broadband users. By linking barring information to the next ACDC category, the system avoids abrupt access denials and maintains stable network performance. The method can be implemented in network nodes like base stations or core network elements, ensuring seamless integration with existing access control mechanisms. This approach enhances network efficiency and reliability in dense deployment environments.
8. The method of claim 1 , wherein the system information includes information on a maximum number of ACDC categories among the plurality of ACDC categories.
This invention relates to wireless communication systems, specifically improving the handling of system information related to Adaptive Coverage and Capacity Control (ACDC) categories. The problem addressed is the need for efficient management of ACDC categories, which are used to control access to network resources based on device types or usage scenarios. The invention provides a method for including system information that specifies the maximum number of ACDC categories available in the system. This allows devices to understand the range of ACDC categories they may encounter, enabling better resource allocation and access control. The system information may be broadcasted or transmitted to user equipment (UE) to ensure they can adapt their behavior accordingly. By defining the maximum number of ACDC categories, the system ensures compatibility and avoids conflicts when new categories are introduced or existing ones are modified. This approach enhances network efficiency by preventing unnecessary signaling and ensuring devices operate within the defined constraints. The method supports dynamic adjustments to ACDC categories while maintaining backward compatibility with existing devices.
9. The method of claim 1 , wherein the system information includes information on a number of lowest ACDC categories among the plurality of ACDC categories.
This invention relates to wireless communication systems, specifically to methods for managing system information related to Adaptive Coverage and Capacity Control (ACDC) categories. The problem addressed is the need for efficient handling of system information in wireless networks, particularly when dealing with multiple ACDC categories that control access to network resources based on device types or usage patterns. The method involves transmitting system information that includes details about the lowest ACDC categories among a plurality of ACDC categories. ACDC categories are used to prioritize or restrict access to network resources for different types of devices or services. The system information helps user equipment (UE) devices determine their access rights or operational constraints based on their assigned ACDC category. By including information about the lowest ACDC categories, the method ensures that UEs can efficiently identify the minimum access level required or the most restrictive category in the system, which can be critical for network management and resource allocation. The method may also involve determining the lowest ACDC categories based on predefined rules or dynamic network conditions, and then encoding this information into the system information for broadcast or unicast transmission. This approach optimizes network signaling and reduces the overhead associated with transmitting detailed ACDC category information for all categories, focusing instead on the most relevant or restrictive categories. The invention is particularly useful in scenarios where network resources are limited, and efficient access control is necessary to maintain service quality.
10. A wireless device in a wireless communication system, the wireless device comprising: a memory; a transceiver; and at least one processor coupled to the memory and the transceiver, wherein the transceiver is configured to receive, from a network, system information comprising barring information for a plurality of application specific congestion control for data communication (ACDC) categories, and wherein the at least one processor is configured to: identify barring information for an ACDC category selected by upper layers among the barring information for the plurality of ACDC categories, perform an access attempt for the ACDC category to a cell, wherein an access to the cell as a result of the access attempt is considered to be allowed for the ACDC category based on that at least one of a barring factor or a barring time is absent in the barring information for the ACDC category, and inform the upper layers of the result of the access attempt.
In wireless communication systems, managing network congestion is critical to ensure efficient resource utilization and service quality. One approach involves Application Specific Congestion Control for Data Communication (ACDC), which categorizes applications and controls access based on congestion levels. However, existing systems may lack flexibility in handling multiple ACDC categories, leading to inefficient access control. This invention addresses the problem by providing a wireless device with enhanced ACDC category handling. The device includes a memory, a transceiver, and at least one processor. The transceiver receives system information from the network, which includes barring information for multiple ACDC categories. The processor identifies barring information for a specific ACDC category selected by upper layers (e.g., application or protocol layers). The device then performs an access attempt to a cell for that category. Access is allowed if the barring information for the selected category lacks either a barring factor (a probability-based restriction) or a barring time (a time-based restriction). The processor informs the upper layers of the access attempt result, enabling adaptive access control based on real-time congestion conditions. This approach improves network efficiency by dynamically adjusting access permissions for different application types.
11. The wireless device of claim 10 , wherein the barring information for the plurality of ACDC categories is ordered by an increasing order of the plurality of ACDC categories.
The invention relates to wireless communication systems, specifically to managing access control for devices in cellular networks. The problem addressed is the need for efficient handling of access barring information, particularly for devices supporting Access Control for Data Communication (ACDC) categories, which classify different types of data traffic to prioritize network access. The wireless device includes a processor configured to receive barring information from a network, where this information applies to multiple ACDC categories. The barring information is structured in an increasing order of ACDC categories, meaning lower-priority categories are listed before higher-priority ones. This ordering allows the device to quickly determine whether access is barred for its specific category without processing all entries. The device also includes a transmitter to send an access request only if the barring information permits it, ensuring compliance with network policies. The invention improves network efficiency by reducing unnecessary access attempts from low-priority devices, thereby optimizing resource allocation. The ordered barring information simplifies the decision-making process for the wireless device, minimizing processing overhead. This solution is particularly useful in scenarios with high network congestion, where prioritizing critical traffic is essential.
12. The wireless device of claim 10 , wherein a first entry of the barring information for the plurality of ACDC categories is mapped to a highest category of which applications are least restricted in access attempts, and wherein a last entry of the barring information for the plurality of ACDC categories is mapped to a lowest category of which applications are most restricted in access attempts.
This invention relates to wireless communication systems, specifically addressing access control for applications based on their category in Access Class Barring (ACB) mechanisms. The problem solved is the need to efficiently manage network access for different types of applications, ensuring that critical applications can access the network while less essential ones are restricted during congestion. The wireless device includes a processor configured to receive barring information for multiple Access Class for Congestion Control (ACDC) categories. These categories classify applications based on their importance, with higher categories having fewer restrictions and lower categories facing more restrictions. The barring information is structured such that the first entry corresponds to the highest ACDC category, where applications are least restricted, while the last entry corresponds to the lowest category, where applications are most restricted. This mapping ensures that during network congestion, higher-priority applications (e.g., emergency services) can still access the network, while lower-priority applications (e.g., social media or streaming) are barred or delayed. The device also includes a transmitter to send access requests based on the received barring information, ensuring compliance with network policies. This approach optimizes network resource allocation by dynamically adjusting access permissions based on application priority, improving overall system efficiency and user experience during high-traffic periods.
13. The wireless device of claim 10 , wherein the transceiver is further configured to inform the upper layers of the result of the access attempt.
A wireless device operates in a wireless communication system where efficient access to network resources is critical. The device includes a transceiver that performs an access attempt to establish communication with a network. During this process, the transceiver may need to inform higher-level protocol layers (upper layers) about the outcome of the access attempt. This ensures that the device can adapt its behavior based on whether the access was successful or failed. The upper layers may include applications, session management, or other protocol layers that rely on the access result to make decisions, such as retrying the access, selecting a different network, or adjusting communication parameters. By providing this feedback, the device improves coordination between the physical and higher layers, enhancing overall system efficiency and reliability. The transceiver may use signaling mechanisms, such as status reports or event notifications, to convey the access result to the upper layers. This feature is particularly useful in scenarios where quick adaptation to network conditions is necessary, such as in mobile environments or congested networks. The invention ensures that the device can dynamically respond to access outcomes, optimizing resource usage and user experience.
14. The wireless device of claim 10 , wherein a first entry of the barring information for the plurality of ACDC categories is mapped to a lowest ACDC category of which applications are most restricted in access attempts, and wherein a last entry of the barring information for the plurality of ACDC categories is mapped to a highest ACDC category of which applications are least restricted in access attempts.
This invention relates to wireless communication systems, specifically to managing access attempts by applications based on Application Congestion Detection and Control (ACDC) categories. The problem addressed is controlling network congestion by restricting access attempts from certain applications, particularly in scenarios where network resources are limited or overloaded. The wireless device includes a processor configured to receive barring information for a plurality of ACDC categories, where each category represents a different level of access restriction for applications. The barring information is structured such that a first entry corresponds to the lowest ACDC category, which imposes the most restrictions on access attempts by applications in that category. Conversely, the last entry corresponds to the highest ACDC category, which imposes the least restrictions, allowing more access attempts. This mapping ensures that applications with higher priority or less congestion impact are granted more access opportunities, while those with lower priority or higher congestion impact are restricted more heavily. The processor uses this barring information to determine whether an application's access attempt should be allowed or barred based on its assigned ACDC category. This approach helps balance network load and prioritize critical applications during congestion.
15. A processor for a wireless device in a wireless communication system, wherein the processor is configured to: control the wireless device to receive, from a network, system information comprising barring information for a plurality of application specific congestion control for data communication (ACDC) categories; identify barring information for an ACDC category selected by upper layers among the barring information for the plurality of ACDC categories; perform an access attempt to a cell based on the ACDC category, wherein an access to the cell as a result of the access attempt is considered to be allowed based on that at least one of a barring factor or a barring time is absent in the barring information for the ACDC category; and inform the upper layers of the result of the access attempt.
This invention relates to wireless communication systems, specifically addressing congestion control for data communication. The problem solved is managing network access for different types of applications to prevent overload, particularly in scenarios where certain applications may generate excessive traffic. The solution involves a processor in a wireless device that handles system information from the network, including barring rules for various application-specific congestion control (ACDC) categories. These categories classify different types of applications based on their traffic patterns or priorities. The processor receives system information containing barring details for multiple ACDC categories, then identifies the barring rules applicable to a specific category selected by higher-layer protocols (e.g., application or OS-level logic). When attempting to access a cell, the processor checks if the selected ACDC category is subject to barring. Access is allowed if the barring information either lacks a barring factor (a probability-based restriction) or a barring time (a temporary restriction period). If access is permitted, the processor proceeds with the connection; otherwise, it may delay or abort the attempt. The result of this access attempt is then communicated back to the upper layers, enabling the application or device to adjust its behavior accordingly. This mechanism ensures that high-priority applications can access the network while low-priority or congestion-prone applications are managed to reduce network strain.
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June 2, 2020
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